Prediction of the Effective Coefficient of Thermal Expansion of Heterogeneous Media using Two-point Correlation Functions

Journal Article · Wed Apr 20 00:00:00 EDT 2011 · Journal of Power Sources, 196(8):3846-3850

DOI:https://doi.org/10.1016/j.jpowsour.2010.12.086· OSTI ID:1012513

Milhans, Jacqueline; Li, Dongsheng; Khaleel, Mohammad A; Sun, Xin; Garmestani, Hamid

Statistical continuum mechanics is used to predict the coefficient of thermal expansion (CTE) for solid oxide fuel cell glass-ceramic seal materials with different morphology and crystallinity. Two-point correlation functions are utilized to represent the microstructure morphology and phase distribution. The model uses two-point correlation function representing microstructure, along with local properties, to predict the effective CTE. Prediction results agree well with experimental results. The advantage of the statistical continuum mechanics model in predicting the effective properties of anisotropic media is to take into consideration of microstructure.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1012513
• Report Number(s): PNNL-SA-73813; JPSODZ; AA2530000; TRN: US201110%%128
• Journal Information: Journal of Power Sources, 196(8):3846-3850, Vol. 196, Issue 8; ISSN 0378-7753
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
CORRELATION FUNCTIONS
DISTRIBUTION
FORECASTING
MICROSTRUCTURE
MORPHOLOGY
SOLID OXIDE FUEL CELLS
THERMAL EXPANSION
coefficient of thermal expansion
solid oxide fuel cell
electrode
statistical continuum mechanics
two-point function